d72c64e5d9
* Support 2 MIB mapper 314 (Y2K 76-in-1) * Mapper 57: Forgot one Sync() statement * Mapper 83: Correction for 256 KiB PRG+512 KiB CHR games * Mapper 114: Use NES 2.0 submapper field if available to differentiate between scrambling patterns * NES 2.0: Support exponential notation of PRG/CHR sizes, thus adding support for 4 KiB and 8 KiB ROM files. * Add mapper 553. * Correct the database regarding the Nanjing game Pegasus Senya * Add submapper 5 (HST-162) to mapper 176 * Add mapper 436 * Mapper 176.5 has a CNROM latch as well, though it works a bit differently than submapper 1's * Added mapper 429 * Added mapper 380 submapper 1 * Added mapper 437 * Added mapper 456 * Forgot to include math.h for pow * Added mapper 434 * Added mapper 452 * Added mapper 438 * Added mappers 391 and 444, corrected the mixup with BS-110 and NC7000M * Added mapper 443. Added menu-switching funcionality to mapper 444 Co-authored-by: NewRisingSun <8vytz1+dhp372pv94ebg@sharklasers.com>
95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2005 CaH4e3
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* BMC 42-in-1 "reset switch" type
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*/
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#include "mapinc.h"
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static uint8 regs[4];
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static SFORMAT StateRegs[] =
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{
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{ regs, 4, "REGS" },
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{ 0 }
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};
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static void Sync(void) {
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if (regs[0] & 0x80) { /* NROM mode */
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if (regs[1] & 0x80)
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setprg32(0x8000, regs[1] & 0x3F);
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else {
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int bank = ((regs[1] & 0x3F) << 1) | ((regs[1] >> 6) & 1);
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setprg16(0x8000, bank);
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setprg16(0xC000, bank);
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}
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} else { /* UNROM mode */
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setprg16(0x8000, regs[1] <<1 | regs[3] &7);
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setprg16(0xC000, regs[1] <<1 | 7);
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}
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if (regs[0] & 0x20)
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setmirror(MI_H);
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else
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setmirror(MI_V);
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setchr8((regs[2] << 2) | ((regs[0] >> 1) & 3));
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}
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static DECLFW(BMC64in1nrWriteLo) {
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A &=3;
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if (A ==3) A =1; /* K-42001's "Aladdin III" */
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regs[A & 3] = V;
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Sync();
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}
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static DECLFW(BMC64in1nrWriteHi) {
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regs[3] = V;
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Sync();
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}
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static void BMC64in1nrPower(void) {
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regs[0] = 0x80;
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regs[1] = 0x43;
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regs[2] = regs[3] = 0;
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Sync();
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SetWriteHandler(0x5000, 0x5FFF, BMC64in1nrWriteLo);
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SetWriteHandler(0x8000, 0xFFFF, BMC64in1nrWriteHi);
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SetReadHandler(0x8000, 0xFFFF, CartBR);
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}
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static void BMC64in1nrReset(void) {
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/* Reset returns to menu */
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regs[0] = 0x80;
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regs[1] = 0x43;
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regs[2] = regs[3] = 0;
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Sync();
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}
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static void StateRestore(int version) {
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Sync();
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}
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void BMC64in1nr_Init(CartInfo *info) {
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info->Power = BMC64in1nrPower;
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info->Reset = BMC64in1nrReset;
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AddExState(&StateRegs, ~0, 0, 0);
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GameStateRestore = StateRestore;
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}
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